Jack made a major impact on St. Louis tennis as a promoter, organizer, tournament director and co-founder of the St. Louis Aces of World TeamTennis. Previously a professional baseball player, he worked in the NBA and founded the Mizzou-Illinois basketball series in St. Louis before turning his attention to tennis in the 1970s, when he brought a WTT event to the Checkerdome, followed by men’s and women’s pro tournaments in the ’80s. Jack ran the Aces from 1994 to 2005, a period that included a WTT championship in 1996.